Precast girder formwork ine mabhenefiti epamusoro-chaiyo, yakapusa chimiro, retractile, nyore-demoulding uye nyore kushanda. Inogona kusimudzwa kana kudhonzwa kukanda saiti integrally, uye demoulded integrally kana piecemeal mushure kongiri kuwana simba, wozovhomora mukati mold kubva girder. Inobatsira kuisa uye kugadzirisa, kuderera kwebasa, uye kushanda kwakanyanya.
Iyo bhiriji viaduct yakakamurwa kuita zvidimbu zvidiki, izvo zvakafanogadzirirwa mune yakanaka mhando yekudzora kukanda yadhi, zvino, inounzwa kuti igadzirwe neakanaka erection michina.